1. K. A. Petrzhak and G. N. Flerov, “Spontaneous fission of nuclei,” Sov. Phys. Usp. 4, 305 (1961).
2. V. V. Dyachkov, Yu. A. Zaripova, A. V. Yushkov, T. K. Zholdybaev, and Zh. K. Kerimkulov, Bull. RAS: Physics 81, 1174 (2017).
3. B. Riemann, On the Hypotheses Which Lie at the Bases of Geometry, in collection “On the Foundations of Geometry.” (Gostekhizdat, Moscow, 1956).
4. A. V. Yushkov, “Surface of β (Z.N) deformation for nuclei with Z from 2 to 102,” Phys. Elem. Part. Atom. Nucl. 24, 348 (1993).
5. Yu. A. Zaripova, V. V. Dyachkov, A. V. Yushkov, T. K. Zholdybaev, and D. K. Gridnev, “Direct experimental detection of spatially localized clusters in nuclei on alpha-particle beams,” Int. J. Mod. Phys. E 27, 1850017 (2018).